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Gastroenterology Emergency Medicine Strong — validated in >17,000 patients; endorsed by ACG and BSG guidelines

BISAP Score for Pancreatitis Mortality

Bedside Index for Severity in Acute Pancreatitis (BISAP). Simple 5-point score calculated within 24h of admission to predict in-hospital mortality.

Used in: Acute Pancreatitis

Score interpretation

Low Risk — < 1% mortality 0–1

BISAP 0–1: Low risk of in-hospital mortality (<1%).

→ Ward-level care. IV fluids (Ringer's lactate preferred, 250–500 mL/h). Analgesia. Nil by mouth initially. Reintroduce oral intake when pain resolves and tolerating.

Moderate Risk — ~2% mortality 2

BISAP 2: Moderate risk, ~2% mortality.

→ Close monitoring. Consider HDU. CT abdomen if not improving at 48–72h or clinical deterioration. GI team review.

High Risk — ~8% mortality 3

BISAP 3: High risk, ~8% mortality.

→ HDU admission. Aggressive fluid resuscitation. CT pancreatic protocol. GI/HPB surgery consult. Monitoring for organ failure.

Very High Risk — 15–22% mortality 4–5

BISAP 4–5: Very high risk, mortality 15–22%.

→ ICU admission. ERCP if cholangitis/obstruction. Early enteral nutrition via NG/NJ. Antibiotics only if infected necrosis confirmed. HPB surgery referral for necrosectomy consideration.

Interpretation bands for the BISAP. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.